package com.example.fist;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.Bean;

import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;


import java.util.ArrayList;
import java.util.List;

@SpringBootApplication
@ServletComponentScan
public class FistApplication  {
    public  static List<String> list=new ArrayList<>();
    public static void main(String[] args) {
        SpringApplication.run(FistApplication.class, args);
    }
    private CorsConfiguration buildConfig() {
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        corsConfiguration.addAllowedOrigin("*");
        corsConfiguration.addAllowedHeader("*");
        corsConfiguration.addAllowedMethod("*");
        return corsConfiguration;
    }
    /**
     * 跨域过滤器
     * @return
     */

    @Bean
    public CorsFilter corsFilter() {


        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", buildConfig()); // 4
        return new CorsFilter(source);
    }


}
